286 



ADVANCED PHYSIOLOGY 



FIG. 143. DIAGRAM 



Proper and improper sitting postures. 



breathless, for the lungs need exercise as well as the muscles, 

 and a quiet walk does not give them as much as they need. 

 The amount of exercise should be equivalent to at least a three- 

 mile walk each day. When it is possible, one should not take 



it till two or three hours 

 after eating. 



Everyone admires a 

 person with an erect car- 

 riage and a good form. 

 This always means grace 

 and easy motion, and it 

 also means good health. 

 A good figure is more de- 

 pendent upon the con- 

 tinued use of the muscles 

 of the whole body than 

 upon the actual shape of the body. It 

 is the constant exercise that they are 

 required to take that gives the West 

 Point cadets their splendid bearing. 



One of the most common defects is 

 that of round shoulders; Fig. 142. 

 This results, primarily, from the mere 

 failure to keep the shoulders back and 

 the head erect. Nothing is more fatal 

 to grace and good general appearance 

 than this deformity and many a per- 

 son whose face is not handsome makes 

 a very pleasing impression because of 

 a graceful form due to a perfectly up- 

 right head. "Head erect, shoulders 

 back and chin in" are three simple 

 directions for good carriage. Standing and sitting erect 

 are the means for developing a sound, handsome body, and 

 using hammocks, reclining chairs, and leaning against sup- 



FIG. 144. DIAGRAM 



Showing the curvature 

 produced by carrying a 

 parcel of books under the 

 arm. To avoid this result, 

 if books are carried under 

 the left arm one day, 

 t^ey should be carried 

 under the right arm on 

 the next, and vice versa. 



